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What Is Decoction Mashing?

Views: 10     Author: Michael Tonsmeire     Publish Time: 2021-09-03      Origin: Site

What Is Decoction Mashing?


Decoction Mashing is a way to conduct multi-step mashes without 

adding additional water or applying heat to the Mash Tun. 

It involves removing about a third of the Mash to another pot 

where it is heated to conversion temperature, then boiled and returned to the Mash Tun. 

The portion removed should be pretty stiff, no free water should be showing above the top of the grain. 

This procedure accomplishes three things. 

First, the addition of boiling hot gruel to the main mash raises the temperature of the mash to the next rest. 

Second, the boiling process breaks up the starch molecules of the unconverted grist and produces a 

higher degree of extraction from moderately-modified continental malts. 

Lastly, it makes it possible to achieve the crisp, dry maltiness characteristic of German Oktoberfest and other continental lagers.

 For more information on Decoction Mashing, see the Recommended Reading Section in the Appendix.

 

When all is said and done though, single rest infusion mashing is the easiest method for producing an all-grain wort. 

The most common homebrewig mash schedule consists of a water-to-grain ratio of 1.5-2 quarts per pound, 

and holding the mash between 150-155F for 1 hour. 

Probably 90% of the beer styles in the world today are produced with this method.

 


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